diff --git a/doc/requirements.txt b/doc/requirements.txt
index 8142000c61..6bfc1639f3 100644
--- a/doc/requirements.txt
+++ b/doc/requirements.txt
@@ -8,7 +8,7 @@ sphinxcontrib-blockdiag>=1.5.4 # BSD
 sphinxcontrib-nwdiag>=0.9.5 # BSD
 sphinxcontrib-seqdiag>=0.8.4 # BSD
 docutils>=0.11 # OSI-Approved Open Source, Public Domain
-sphinx!=1.6.6,<1.7.0,>=1.6.2 # BSD
+sphinx!=1.6.6,>=1.6.2 # BSD
 graphviz!=0.5.0,>=0.4 # MIT License
 openstackdocstheme>=1.18.1 # Apache-2.0
 sadisplay>=0.4.8 # BSD
diff --git a/requirements.txt b/requirements.txt
index 2046a5c181..7c9f89a1df 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -16,7 +16,7 @@ python-neutronclient>=6.7.0 # Apache-2.0
 WebOb>=1.7.1 # MIT
 six>=1.10.0 # MIT
 stevedore>=1.20.0 # Apache-2.0
-oslo.config>=5.1.0 # Apache-2.0
+oslo.config>=5.2.0 # Apache-2.0
 oslo.context>=2.19.2 # Apache-2.0
 oslo.db>=4.27.0 # Apache-2.0
 oslo.i18n>=3.15.3 # Apache-2.0
@@ -32,7 +32,7 @@ PyMySQL>=0.7.6 # MIT License
 python-barbicanclient!=4.5.0,!=4.5.1,>=4.0.0 # Apache-2.0
 python-glanceclient>=2.8.0 # Apache-2.0
 python-novaclient>=9.1.0 # Apache-2.0
-pyOpenSSL>=16.2.0 # Apache-2.0
+pyOpenSSL>=17.1.0 # Apache-2.0
 WSME>=0.8.0 # MIT
 Jinja2>=2.10 # BSD License (3 clause)
 taskflow>=2.16.0 # Apache-2.0
diff --git a/test-requirements.txt b/test-requirements.txt
index f4169bf14c..fdf5eb5837 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -18,4 +18,4 @@ doc8>=0.6.0 # Apache-2.0
 bandit>=1.1.0 # Apache-2.0
 tempest>=17.1.0 # Apache-2.0
 # Required for pep8 - doc8 tests
-sphinx!=1.6.6,<1.7.0,>=1.6.2 # BSD
+sphinx!=1.6.6,>=1.6.2 # BSD